Kent · London and the South East
Sevenoaks Thermal Roof Survey
Thermal imaging to find moisture and heat loss patterns in a roof for Sevenoaks and the rest of Kent. We survey on weekdays and at weekends.
- Thin or uneven insulation in the roof
- Cold spots on ceilings under the roof
- Patches of heat loss across the roof
About our thermal roof survey in Sevenoaks
Thermal imaging is often most useful on flat roofs, from small extensions to large commercial roofs. Patterns can suggest where water is trapped under the covering. Pitched roofs with slates or tiles are often harder to read, because of the air space beneath, so we also look from the loft where we can reach it safely. Typical surveys look at stains that keep coming back and leaks far from where the stain appears, on loft conversions, pitched roof slopes and insulated roof spaces.
Older homes in a town like Sevenoaks may lose heat through roofs with little or no insulation. Thermal imaging can show where heat escapes, and it can also point to damp patches. What it shows is surface temperature, not water itself, so findings are checked with moisture readings, while drone photos show the outside of the same roof. Results depend on the conditions, which is why the date is chosen with care.
Findings are set out part by part, from the main slopes down to the gutters and outlets, each with a short note and a photograph. You’ll see the good as well as the bad.
- Location
- Sevenoaks (TN13, TN14, TN15, TN8)
- Wider area
- Kent
- Price
- From £400 inc. VAT
- Reports
- A written report with photos, by email
- Appointments
- Monday to Sunday, daytime
- Cover
- Professional indemnity and public liability
- Phone
- 07833 053749
- Page updated
- 27 October 2026
The survey, step by step
Before we start, let us know why you’ve booked: a purchase, a leak, a storm, new work or simply peace of mind. That way we can focus on what matters to you. Most visits take between one and two hours at a house, including the thermal images, and around 3–4 hours for a commercial roof. Semi-detached and terraced homes in a town like Sevenoaks often share a roof line with the neighbours, so we check what can be seen of the shared parts from your side. Let us know about any known leaks, past repairs or building work when booking, so time on site goes where it’s needed.
- You tell us about the roof and any damp, leaks or cold rooms.
- The weather and surface conditions are recorded.
- A full inspection and thermal imaging are carried out together.
- Moisture readings are used to check what the camera shows.
- You get the report the same day, with an in-person consultation to follow.
Before we arrive
- Let us know about parking before the day
- Have any questions written down, so nothing gets missed
- Gather any invoices or paperwork from past roof work
Getting a price
Photos help, if you have them. Take them safely from the ground or a window. To get started, call 07833 053749 or drop us an email.
Advice
Surveys for landlords and agents in Sevenoaks
Surveys can also be booked by buyers’ agents acting for a client. The report is emailed, so it can go straight to your client, photographs included.
A roof problem in a let property affects your tenants as well as the building. A survey shows what needs attention, so you can plan the work with less disruption.
How the survey changes by roof type
Parapets, valleys and junctions
Junctions where roofs meet walls, parapets and valleys are common places for water to get in. Thermal imaging can help show damp patterns around them.
Felt and asphalt flat roofs
These coverings sit directly on the layers beneath, so temperature differences often show through. Any patterns are checked with moisture readings.
What a survey costs
Prices always include VAT. The things that change the price are:
- The shape of the roof and its details
- Commercial roofs and larger buildings
- Roof area
- Height and safe access
We offer three survey packages: the Basic Survey from £150, the Standard Survey from £250 and the Premium Survey from £400, all including VAT. What your roof costs depends on its size, access and what you want to find out.
What we need to know
Here’s what helps us most when you get in touch:
- Dates you’re working to, such as exchange
- Anything about access we should know
- Your postcode, so we can check access and travel
- The style of property, from a terrace to a block
Our price is from £400, including VAT. The exact figure depends on the roof and the package, and you can phone 07833 053749 or email us to find out.
Leave it or get it looked at?
A damp patch that keeps coming back normally has a cause that hasn’t been found. Thermal imaging with moisture readings can help narrow it down, rather than more guesswork. Around Sevenoaks, water from a roof defect often goes unseen for a while, like the loft insulation, the top of a wall or the roof timbers. By the time a stain appears on a ceiling, there’s more to put right.
One thing that affects the price is the package: Basic from £150, Standard from £250 or Premium from £400, all with VAT included. Size, height and access can affect the price too.
Why us?
- Over 20 years’ experience
- More than 5,000 surveys completed
- Drone and thermal imaging surveys available
- Drone flown under a CAA Flyer ID and Operator ID
See our cost guide and two real surveys.
Nearby places to Sevenoaks
Also in Sevenoaks
Signs you need a thermal roof survey in Sevenoaks
After a long-running leak, insulation under a flat roof can stay wet. Owners want to know how far it has spread before deciding what to do. A thermal survey, checked with moisture readings, can give a much clearer picture.
It is worth booking a survey if you’ve seen:
- Areas losing heat at the eaves and junctions
- Water getting in at parapets and stacks
- Areas of a flat roof that may hold water
- Damp patches with no obvious cause
If you look after a building such as Sevenoaks Primary School, a view from above covers a wide roof far faster than walking it.
Before you book any roof surveyor
- Is there a chance to talk the report through?
- Their report turnaround times
- Whether you get a written report with photos
- Whether VAT is added on top
Your questions about thermal roof surveys in Sevenoaks
Does a conservation area affect roof work in Sevenoaks?
You can check whether a building is listed on Historic England’s list, and your council can tell you if it’s in a conservation area. If a home is listed, changes that affect its special interest need listed building consent, and in a conservation area re-roofing in different materials may need permission.
How should I get ready for a visit in Sevenoaks?
Not much. Unlock side gates, keep pets in another room and dig out any invoices from past roof work.
Will the camera show exactly where the water is?
No, not on its own. It shows temperature, and wet materials frequently behave differently from dry ones. We confirm what it suggests with moisture readings.
Does this replace a RICS home survey?
No. This is a survey of the roof only, and it is not a RICS Level 2 or Level 3 survey. Many buyers have both.
Are you insured?
We are covered by professional indemnity and public liability insurance, for every survey we carry out.
Do you survey roofs on blocks of flats?
Yes, once whoever controls the roof agrees access. We look at the parts we’re given access to, and the report makes that clear.
Will thermal imaging find my leak?
It often helps show where to look. Patterns can suggest where trapped water has spread. It’s used alongside a close inspection and moisture readings because the camera can’t confirm water on its own.
Airspace, weather and Sevenoaks roofs
Historic houses like Knole House, about 1.3 miles south-east, show how far back building in the area around Sevenoaks goes. Period homes nearby can have lead valleys, tall chimneys and a patchwork of past repairs, and a listed home or one in a conservation area may need consent for changes of material. Where the drone is part of the survey, we check the Drone Safety Map for restrictions before flying.
Take an older house close to St John the Baptist: thin or patchy insulation under an old roof often shows up clearly on a thermal image.
Sevenoaks is about 19 miles south-east of London, in Kent. From houses to flats and shops in Sevenoaks, the roof can be surveyed. We cover towns and villages across Kent, from the larger towns to small villages. Our Maidstone page covers surveys nearby.
We cover every part of TN13, TN14, TN15 and TN8 for thermal roof surveys. Whether your property is on London Road, High Street and Church Road or a nearby road, we can help. Main roads around Sevenoaks include the A21 and A25, so getting to you is simple. Neighbouring places we cover for thermal roof surveys include Riverhead (1 mile west), Kippington (1 mile south), Dunton Green (1 mile north-west), Bessels Green (1 mile west) and Chipstead (2 miles west). Larger places within reach include Maidstone (15 miles east), Dartford (11 miles north), Royal Tunbridge Wells (11 miles south), Gravesend (13 miles north-east), Tonbridge (7 miles south-east) and Northfleet (13 miles north-east). Sevenoaks is one of the larger places we cover in Kent.
Landmarks near Sevenoaks
Around Sevenoaks, our work takes us to homes and buildings near The Rifleman pub, New Beacon School and Knole Academy. Sevenoaks has its own railway station: Sevenoaks station. Nearby you’ll also find Sevenoaks Hospital (0.6 miles north-east) and Kemsing Castle Bank (2.6 miles north-east). The countryside around Sevenoaks includes Dryhill Nature Reserve.